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EXPEDITED PERMIT PROCESS FOR SMALL-SCALE PV SYSTEMS MICRO-INVERTER The in[ormation in this guideline is intended to help local jurisdictions and conrractors identify when PV sysrem insrallarions are simple, needing only a basic review and when an installation is more complex. It is likely thar 50%-75% of all residential systems will comply with these simple criteria. For projecrs that fail to meet the simple criteria. resolution steps have been suggested to provide as a parh to permit approval. Required Information Jor Perfiit: l. Site plan showing location of major components on the property. This drawing need not be exactly to scale, but it should represent relative location of components at site (see supplied example site plan). PV arrays on dwellings with a 3'perimeter space at ridge and sides may not need separate hre service review. 2. Electrical diagram showing PV array conngurarion, wiring system, overcurrent protection, inverter, disconnecrs, required signs, and ac connection to building (see supplied standard elecrrical diagram). 3. Specincation sheets and installation manuals (if available) for all manufactured components including. bur not limited to. PV modules. inverter(s), combiner box, disconnects. and mounting system. Step 1 : Structural Review of PV Array Mounting System Is the array to be mounted on a defined, permitted roof structure?ves flruo U No due to non-compliant roof or a ground mount. submit completed worksheet Jor the structure WKSI Roof lnJormation: L ls the roohng type lightweight (Yes = composition. lighrweighr masonry, meral, erc...)COMPOSITION SHINGLE. CLASS A IJ No, submit completed worksheet for roof structure WKS.I (No = heavy masonry, slate, etc...) 2 Does the roof have a single roof covering?Yes E I,,to Il No, submit completed worksheet lor roof structure WKSI L Provide method and type of weatherproohng roof penetrations (e.g. tlashing, caulk)FLASHING, UNIRAC Mounting Systern lnformation: L ls the mounting srructure an en ineered product designed ro mount PV modules wirh no more than an 18" gap beneath the module frames?ves E t,to U No. provide details ol structural attachmmt certiled by a design professional. 2. For manufactured mounting systems, fill out information on the mounting system below a. Mounrins svsrem Manulacrurer UNIRAC P roduct Name and Model# sosRMouNT RAIL b. Toral Weight of PV Modules and Rails 899.55 bs c. Total Number oI Attachment Points 30 d. Weighr per Arrachment Poinr (b+c)2999 lbs (if grearer rhan 45 lbs, see WKSI) e Maximum Spacing Between Attachment Points on a Ra maximum spacing allowed based on maximum design Total Surface Area of PV Modules (square feet)264.30 il 48 inches (see product manual for wind speed) fr':t. e Distributed Weight of PV Module on Roof (b + l)3.40 lbs/f[r IJ tlistributed weight ol the PV system is gredtet than 5 lbslff , see WKSI . Step 2: Electrical Review o[ PV System (Calculations for Electrical Diagram) In order for a PV system to be considered for an expedited permit process, the following must apply: 1. PV modules, utility-interactive inveners, and combiner boxes are identi6ed for use in PV systems. 2. The PV array is composed o[ 4 series strings or less per inverter. 3. The total inverrer capacity has a continuous ac power outpur 13,440 Watts or less 4. The ac interconneclion point is on the load side of service disconnecting means (690.64(8)). 5. One of the standard electrical diagrams(81.1, El.la, El.lb, orEl.lc) can be used to accurately represenr rhe PV system. Interactive PDF diagrams are available at www.solarabcs.orgi permitting. Fill out the standard electical diagrum completely. A gLtide to the electical diagram is provid.ed to help the applicant understand each blank to jll in. If the electrical system is more complex than the standard electrical diagram can euectively communicate. provide an alternative diagram with appropriate detail 2 ExpEDrrED PERMIT PRocEss FoR PV sysrEMs - MlcRo-INVERTER